报告1

报告题目:Comparison theorems for integral Bakry-Emery curvature bounds

报告时间:201874日(星期三)09:00—09:25

报告地点:悉尼大学中国中心(苏州园区月亮湾路10号慧湖大厦A121202室)

报告人:Jiayong Wu (Shanghai Maritime University)

报告提要:We prove some new comparison theorems for integral Bakry-Emery curvature bounds. As applications, some geometric results with the integral Bakry-Emery curvature are provided.

 

 

报告2

报告题目:Kähler-Ricci flow on Fano bundles

报告时间:201874日(星期三)09:30—09:55

报告地点:悉尼大学中国中心 

报告人:Shijin Zhang (Beihang University)

报告提要:In this talk, I will talk about the behavior of the Kähler-Ricci flow on some Fano bundles which is a trivial bundle on one Zariski open set. We show that if the fiber is P^m blown up at one point and the initial metric is in a suitable Kähler class, then the fibers collapse in finite time and the metrics converge sub-sequentially in Gromov-Hausdorff sense to a metric on the base. This is a joint work with Xin Fu.
 

 

报告3 

报告题目:Regularity and uniqueness of the solutions of some degenerate Monge-Ampère equations

报告时间:201874日(星期三)10:00—10:25

报告地点:悉尼大学中国中心

报告人:Genggeng Huang (Fudan University)

报告提要:In this talk, we mainly focus on the following Monge-Ampère equation:

det D2= Λp(−u)p,       in Ω,

= 0,                on ∂Ω,

where Ω is a bounded smooth uniformly convex domain in R^n. We will recall some regularity results of this degenerate Monge-Ampère equation. At last, we will talk about some recent work on the uniqueness of the non-trivial solution of the above equation.

 

 

报告4

报告题目:Ricci flow on complete manifolds and applications

报告时间:201874日(星期三)11:00—11:25

报告地点:悉尼大学中国中心 

报告人:Fei He (Xiamen University)

报告提要:I will talk about some recent progress on the Ricci flow on complete noncompact manifolds with possibly unbounded curvature, and introduce some application of the flow.

 

 

报告5

报告题目:On the extension of the Ricci Bourguignon flow

报告时间:201874日(星期三)11:30—11:55

报告地点:悉尼大学中国中心

报告人:Anqiang Zhu (Wuhan University)

报告提要:In this report, we will talk about the extension problem of the Ricci Bourguignon flow on Riemannian manifolds. Using Kotschwar-Wang-Munteanu's method, we will show that the norm of the Weyl tensor of any smooth solution to the Ricci Bourguignon flow can be explicitly estimated in terms of its initial value on a given ball, a local uniform bound on the Ricci tensor. As an application, we show that along the Ricci Bourguignon flow, if the Ricci curvature is bounded, then the curvature operator is bounded.